Quenstedtite

Quenstedtite is an uncommon iron sulfate mineral with chemical formula Fe2(SO4)3·11H2O. It forms violet or white triclinic crystals. Found in oxidized zones of pyrite-rich orebodies, especially in arid climates. It was first reported in 1888 for an occurrence in Tierra Amarilla, Copiapó Province, Atacama Region, Chile and named by G. Linck in 1889 for the German mineralogist F. A. von Quenstedt (1809–1889).[2][3]

Quenstedtite
General
Categorysulfate minerals
Formula
(repeating unit)
Fe2(SO4)3·11H2O
IMA symbolQst[1]
Strunz classification7.CB.65
Crystal systemTriclinic
Crystal classPinacoidal (1)
(same H-M symbol)
Space groupP1
Unit cella = 6.184 Å, b = 23.6 Å
c = 6.539 Å; α = 94.18°
β = 101.73°, γ = 96.27°; Z = 2
Identification
Colorwhite to very pale violet to red-violet
References[2]

References

  1. Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. doi:10.1180/mgm.2021.43. S2CID 235729616.
  2. Mindat
  3. Handbook of Mineralogy


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